1) RIAA is an American organisation. They have absolutely no juristiction outside the USA.
2) Potential targets of the RIAA are only people who download and upload several GB per DAY.
3) Even if you are one of the few who download so much music, then Kazaa Lite has an option to hide your list of shared files. It will then look like you share nothing at all.
4) There are millions of people in the USA alone that participate in file-sharing. Everytime the RIAA is in the news, they have 'caught' only a handfull of people (only 0 to 5 people per month!. So your changes of getting 'caught' are less than 1 to a million. Or virtually 0 when one of the reasons above applies.
5) Those few people that got 'caught' usually only received a warning letter. There are only a few cases known of people who actually got a fine. The highest one was $7,500 for some student that was sharing 1 MILLION mp3 files.
Conclusion: happy filesharing to everybody